<template>
  <div>
    <!-- 面包屑导航区 -->
    <el-breadcrumb separator-class="el-icon-arrow-right">
      <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
      <el-breadcrumb-item>商品管理</el-breadcrumb-item>
      <el-breadcrumb-item>商品列表</el-breadcrumb-item>
    </el-breadcrumb>
    <!-- 卡片视图 -->
    <el-card>
      <el-row :gutter="20">
        <el-col :span="8">
          <el-input
            placeholder="请输入内容"
            v-model="queryInfo.query"
            clearable
            @clear="getGoodList"
          >
            <el-button
              slot="append"
              icon="el-icon-search"
              @click="getGoodList"
            ></el-button>
          </el-input>
        </el-col>
        <el-col :span="4">
          <el-button type="primary" @click="goToAddPage">添加商品</el-button>
        </el-col>
      </el-row>
      <!-- table 表格区域 -->
      <el-table :data="goodList" border stripe>
        <el-table-column label="#" type="index"></el-table-column>
        <el-table-column label="商品名称" prop="goods_name"></el-table-column>
        <el-table-column
          label="商品价格（元）"
          prop="goods_price"
          width="95px"
        ></el-table-column>
        <el-table-column
          label="商品重量"
          prop="goods_weight"
          width="95px"
        ></el-table-column>
        <el-table-column label="创建时间" width="150px">
          <template slot-scope="scope">
            {{ scope.row.add_time | dateFormat }}
          </template>
        </el-table-column>
        <el-table-column label="操作" width="130px">
          <template slot-scope="scope">
            <el-button
              type="primary"
              icon="el-icon-edit"
              size="mini"
            ></el-button>
            <el-button
              type="danger"
              icon="el-icon-delete"
              size="mini"
              @click="deleteById(scope.row.goods_id)"
            ></el-button>
          </template>
        </el-table-column>
      </el-table>
      <el-pagination
        @size-change="handleSizeChange"
        @current-change="handleCurrentChange"
        :current-page="currentPage4"
        :page-sizes="[10, 20, 50, 100]"
        :page-size="queryInfo.pagesize"
        layout="total, sizes, prev, pager, next, jumper"
        :total="total"
      >
      </el-pagination>
    </el-card>
  </div>
</template>

<script>
export default {
  created() {
    this.getGoodList();
  },
  data() {
    return {
      queryInfo: {
        // 查询关键字
        query: "",
        // 当前页码
        pagenum: 1,
        // 每页的条数
        pagesize: 10,
      },
      // 数据列表
      goodList: [],
      // 总条数
      total: 0,
    };
  },
  methods: {
    async getGoodList() {
      const { data: res } = await this.$http.get("goods", {
        params: this.queryInfo,
      });
      if (res.meta.status !== 200) {
        return this.$message.error("得到用户列表失败！");
      }
      this.goodList = res.data.goods;
      this.total = res.data.total;
    },
    // 当分页的每页大小发生变化时调用的函数
    handleSizeChange(newSize) {
      this.queryInfo.pagesize = newSize;
      this.getGoodList();
    },
    // 当分页的当前页面发生变化时调用的函数
    handleCurrentChange(newPage) {
      this.queryInfo.pagenum = newPage;
      this.getGoodList();
    },
    // 根据id删除商品
    deleteById(id) {
      this.$confirm("此操作将永久删除该商品, 是否继续?", "提示", {
        confirmButtonText: "确定",
        cancelButtonText: "取消",
        type: "warning",
      })
        .then(async () => {
          const { data: res } = await this.$http.delete(`goods/${id}`);
          if (res.meta.status !== 200) {
            return this.$message.error("删除失败！");
          }
          this.$message({
            type: "success",
            message: "删除成功!",
          });
          this.getGoodList();
        })
        .catch(() => {
          this.$message({
            type: "info",
            message: "已取消删除",
          });
        });
    },
    // 跳转到添加页面
    goToAddPage() {
      this.$router.push("goods/add");
    },
  },
};
</script>

<style>
</style>